Screw-cap for collapsible tubes



(No Model.)

H. M. WIRZ. SCREW GAP FOR OOLLAPSIBLE TUBES. No. 359,305. Patented Mar.15, 1887.

WITNESSES UNITED STATES PATENT OFFICE.

HENRY M. VVIRZ, OF VVALLINGFORD, PENNSYLVANIA.

SCREW-CAP FOR COLLAPSIBLE TUBES.

SPECIFICATION forming part of Letters Patent No. 359,305, dated March15, 1887.

Application filed December 3, 1886. Serial No. 220,631. (No model.)

To all whom it may concern:

Be it known that I, HENRY M. WIRZ, a citizen of the United States,residing at Wallingford, in the county of Delaware and State ofPennsylvania, have invented certain new and useful Improvements inScrew-Caps for Collapsible Tubes and Bottle-Stoppers; and I do herebydeclare the following to be a full, clear, and exact description of theinvent-ion, such as will enable others skilled in the art to which itappertains to make and use the same.

My invention relates to screw-caps for collapsible tubes,bottlestoppers, and similar articles;-and the improvement consists inthe construction and combination of parts hereinafter described, andpointed out in the claims.

In the accompanying drawings, Figure 1 shows a section of a collapsibletube with my improvement thereon, and having the valve open. Fig. 2 is asection of the tube, showing the valve closed. Figs. 3, 4, 5, and 6 aredetails of the screw-cap and neck of the tube.

A is the body of the collapsible tube,which is constructed of metal inthe ordinary manner.

B is the heavy metal shoulder or top of the tube. Shoulder B and body Aare preferably formed of a single piece of metal, the body being drawnup from the shoulder.

G is thescrew-threaded neck.

D is the screw-cap, fitting over the neck 0.

a a are two discharge-orifices in the cap D. E is a valve secured to thecap D, and hav ing an extending flange, b, made to conform to the underside of the shoulder or top B. The upper end of the valve E has ashoulder and a screw-threaded extension which fits into a screw-threadedcentral opening in the cap: D. The projecting end of the screw is thenThecap D is screwed upon neck 0, and the valve E is inserted from thebottom of the tube and screwed or otherwise secured in cap D. The tubeis then filled and the bottom closed in the usual manner.

The tube being constructed and arranged in the manner shown in Fig. 1,the valve E is closed by simply turning the cap D, as if about toremovefit from the neck 0. This movement will bring the flange b of thevalve E up against the under side of the shoulder B, in the positionshown in Fig. 2, thus effectuall'y closing the tube and preventing anyof its contents from coming out or being removed. The reverse movementof the cap D will of course again open the valve.

If desired, the neck 0 may be internally screw-threaded and the cap Dprovided with an external screw-thread.

Having thus described my invention, what I claim as new, and desire tosecure by Let ters Patent of the United States, is

1. A non detachable cap for collapsible tubes and other articles,consisting of the screw-cap D, fitting on a screw-threaded neck, avalve, E, secured to the top of the cap, and having a flaring base,which closes against the bottom of the neck, and discharge opening oropenings in the top of the cap, beside the valve-stem, as set forth.

2. In a collapsible tube, the combination of the body A, the shoulder ortop B, having the screw-threaded neck 0, the screw-cap D, havingdischarge opening or openings 0., and the valve E, secured to thescrew-cap D, and provided with the enlarged base or flange b, allarranged substantially as and'for the purpose described.

In testimony whereof I alfix my signature in presence of two witnesses.

CHARLES E. LEX, Jr., THos. D. MOWLDS.

